The Ashfall Basin
A volcanic basin under a smoke-dimmed sky and Earth-like gravity. Sulfur vents and scalding mineral pools dot fields of cooled basalt; the air is thin and acrid, and heat from below — not sunlight — drives much of life here.
9 species · 9 starting species
Starting species(9)
Cinder-Skitterer
🦗 Arthropod
A low, plated arthropod that scuttles across cooling basalt, scavenging whatever the vents kill.
Sulfur-Sipper
🦠 Microbe
A microbial mat that harvests energy from sulfur compounds welling up at the vents.
Vent-Tubeworm
🪱 Worm
Anchors beside the hottest vents, feeding through bacteria housed in its body wall.
Pool-Darter
🐟 Fish
A small fish that grazes microbial films in the scalding mineral pools between flows.
Thermal-Glider
🦅 Flyer
Rides the hot updrafts off lava fields on wide membranes, snatching airborne prey.
Crust-Grazer
🦬 Grazer
A stout grazer that rasps tough chemosynthetic crusts from the cooled rock.
Ashroot
🌿 Plant
A rooted organism that draws warmth and minerals from the ash, anchoring the slopes.
Emberveil Fungus
🍄 Fungus
Blooms on dead vent-life, casting heat-hardened spores when the ground cools.
Slag-Burrower
🦫 Burrower
Tunnels through warm sub-surface ash, sheltering from the surface heat and eating buried matter.
All species (9)
- Cinder-SkittererEvo 1A low, plated arthropod that scuttles across cooling basalt, scavenging whatever the vents kill.
- Sulfur-SipperEvo 1A microbial mat that harvests energy from sulfur compounds welling up at the vents.
- Vent-TubewormEvo 1Anchors beside the hottest vents, feeding through bacteria housed in its body wall.
- Pool-DarterEvo 1A small fish that grazes microbial films in the scalding mineral pools between flows.
- Thermal-GliderEvo 1Rides the hot updrafts off lava fields on wide membranes, snatching airborne prey.
- Crust-GrazerEvo 1A stout grazer that rasps tough chemosynthetic crusts from the cooled rock.
- AshrootEvo 1A rooted organism that draws warmth and minerals from the ash, anchoring the slopes.
- Emberveil FungusEvo 1Blooms on dead vent-life, casting heat-hardened spores when the ground cools.
- Slag-BurrowerEvo 1Tunnels through warm sub-surface ash, sheltering from the surface heat and eating buried matter.
Tree of life
- resilient
- strained
- fragile
- ★ canon
- 🧬 hybrid
- 💀 extinct
Click a species in the tree to evolve or cross-breed it here, without leaving this world. Double-click a node to open its full page.